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因数分解せよ。
12a2b−6ab2−4ab12a^2b-6ab^2-4ab12a2b−6ab2−4ab
展開せよ。
(4x−5)2\left(4x-5\right)^2(4x−5)2
x2+10x−39x^2+10x-39x2+10x−39
y2−18y+81y^2-18y+81y2−18y+81
abx2−16ababx^2-16ababx2−16ab
49x2−28xy+4y249x^2-28xy+4y^249x2−28xy+4y2
(x+5)2+10(x+5)+16\left(x+5\right)^2+10\left(x+5\right)+16(x+5)2+10(x+5)+16
(x−5)2=36\left(x-5\right)^2=36(x−5)2=36
x2−12x+36=0x^2-12x+36=0x2−12x+36=0
x2+3x−54=0x^2+3x-54=0x2+3x−54=0
2x2+x−4=02x^2+x-4=02x2+x−4=0
x=−1±334x=\frac{-1\pm\sqrt[]{33}}{4}x=4−1±33
x=−1±174x=\frac{-1\pm\sqrt[]{17}}{4}x=4−1±17
x=−1±332x=\frac{-1\pm\sqrt[]{33}}{2}x=2−1±33
x=−1±172x=\frac{-1\pm\sqrt[]{17}}{2}x=2−1±17
x(x−1)=−4(x−7)x\left(x-1\right)=-4\left(x-7\right)x(x−1)=−4(x−7)
x = 5±1372\frac{5\pm\sqrt[]{137}}{2}25±137
x = −5±1372\frac{-5\pm\sqrt[]{137}}{2}2−5±137
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